Triangles fingerboard inlay



FIG. 1 is a front view of the triangles fingerboard inlay in the neck of a stringed musical instrument showing of my new design; and,

FIG. 2 is a perspective view thereof.

The broken, dashed lines in the figures form no part of the claimed design and are only for illustrative purposes. 

What I claim is the ornamental design for a triangles fingerboard inlay, as shown and described. 